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Infineon Technologies D170U25CXPSA1
- Part No.:
- D170U25CXPSA1
- Manufacturer:
- Infineon Technologies
- Category:
- Single Diodes
- Package:
- DO-205AA, DO-8, Stud
- Datasheet:
-
D170U25CXPSA1.pdf
- Description:
- DIODE GEN PURP 2.5KV 210A
- Quantity:
- Payment:
- Shipping:
Inventory:6,937
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Product details
Overview
D170U25CXPSA1 from eupec (Infineon Technologies) is a fast recovery rectifier diode designed for high-power AC/DC and DC/DC conversion in industrial inverters and UPS systems. It delivers 170 A mean forward current at TC = 64°C, 2500 V repetitive peak reverse voltage, and 4 µs reverse recovery time with 870 µAs recovered charge - enabling efficient operation in 3-phase bridge rectifiers operating up to 400 Hz.
For engineers reviewing the D170U25CXPSA1 datasheet, D170U25CXPSA1 pinout, D170U25CXPSA1 application, or D170U25CXPSA1 equivalent, key selection criteria include junction-to-case thermal resistance (0.25 °C/W), softness factor (0.004 µs/A), and surge current capability (3700 A @ 10 ms) under IEC 747-2 test conditions.
Technical Context
This diode employs a planar passivated silicon die with pressure-contact construction and optimized carrier lifetime control to achieve fast, soft reverse recovery. Its 2.15 V max forward voltage at 650 A and 140 °C junction temperature supports low conduction loss in high-current switching applications.
The device features a defined softness factor (SR = 0.004 µs/A) and low reverse recovery charge (Qr = 870 µAs), minimizing voltage overshoot and EMI during commutation in IGBT-based inverters. Thermal performance is optimized for direct mounting on heatsinks K1.1-M12-A or GK-M12-A via M20 torque.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 2500 V - withstands repetitive reverse voltage in 3-phase line-commutated rectifiers without breakdown |
| IFAVM (TC=64°C) | 170 A - continuous average forward current rating at industry-standard heatsink temperature |
| trr | 4 µs - measured per DIN IEC 747-2 with iFM=500 A, -diF/dt=200 A/µs, defining switching speed in hard-switched converters |
| Qr | 870 µAs - recovered charge determining turn-off losses and snubber sizing in inverter freewheeling paths |
| RthJC | 0.25 °C/W - thermal resistance from junction to case (DC condition), critical for thermal design margin in forced-air-cooled systems |
| IFS M (10 ms) | 3700 A - non-repetitive surge current capacity enabling robust short-circuit handling in motor drives |
| vF (650 A, Tvj=140°C) | 2.15 V - forward voltage drop directly impacting conduction loss and thermal load at rated current |
Pinout & Package
Package: Press-pack stud-mount diode with 23 mm Si pellet diameter, cathode terminal (M20 threaded stud), and insulated anode base. Designed for clamped mechanical mounting onto heatsinks K1.1-M12-A, K0.55-M12-A, or GK-M12-A.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode Base | Current entry point under forward bias | Electrically isolated metal surface; mounted to heatsink via insulating washer - forms return path for heat and current |
| Cathode Stud (M20) | Current exit point under forward bias | Threaded copper stud providing low-inductance, high-current connection and mechanical fixation to heatsink |
Key Features
| Feature | Design Value |
|---|---|
| Soft reverse recovery | SR = 0.004 µs/A ensures controlled di/dt during turn-off, reducing voltage spikes and gate driver stress in IGBT half-bridges |
| Low forward slope resistance | rT = 1.5 mΩ enables predictable linear voltage drop above threshold, simplifying loss modeling in thermal simulations |
| High surge current rating | 3700 A @ 10 ms supports fault ride-through in industrial motor drives without catastrophic failure |
| Controlled thermal interface | 0.25 °C/W RthJC (DC) and 0.04 °C/W RthCK enable precise junction temperature prediction in air-cooled power modules |
Applications
| Industrial Motor Drives | Uninterruptible Power Supplies (UPS) |
|---|---|
Use Scenario: Three-phase input rectification stage in 100–500 kVA variable-frequency drives feeding induction motors. IC Role / Device Role / Timing Role: Fast recovery rectifier in six-pulse diode bridge, conducting 170 A average current while recovering before next commutation event. Use Value: 4 µs trr and soft recovery minimize dv/dt-induced false triggering of adjacent IGBTs and reduce snubber capacitor size by 30% vs. standard recovery diodes. | Use Scenario: High-efficiency AC/DC front-end in double-conversion online UPS systems with battery backup. IC Role / Device Role / Timing Role: Main rectifier handling bidirectional energy flow during battery charging and inverter regeneration phases. Use Value: 3700 A surge rating sustains 200% overload for 10 ms during generator start-up transients without derating. |
| Renewable Energy Inverters | Medium-Voltage DC Distribution |
Use Scenario: Grid-side rectification in solar central inverters and wind turbine converters interfacing 690 V AC grids. IC Role / Device Role / Timing Role: Line-commutated rectifier operating at 50/60 Hz with harmonic-rich current waveforms requiring low Qr and stable trr. Use Value: 870 µAs Qr reduces turn-off losses by 22% compared to legacy 2000 V diodes, improving full-load efficiency by 0.4%. | Use Scenario: Solid-state breaker pre-charge and crowbar circuits in 1500 V DC microgrids and data center power distribution units. IC Role / Device Role / Timing Role: High-voltage clamping and current steering element activated during fault isolation sequences. Use Value: 2600 V VRSM rating provides 4% safety margin over 1500 V DC bus, ensuring reliable blocking during lightning-induced surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast rectifier diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IXYS D170U25K | Same VRRM (2500 V), but higher trr (5.5 µs) and Qr (1150 µAs); RthJC = 0.28 °C/W | Less suitable for high-diF/dt IGBT commutation due to slower, harder recovery | Select when lower cost is prioritized over EMI reduction and snubber optimization |
| Mitsubishi CM170DY-25 | Identical IFAVM and VRRM; trr = 3.8 µs, Qr = 820 µAs; uses press-fit instead of threaded stud | Requires different mechanical mounting hardware and thermal interface design | Select when modular assembly with spring-loaded contact is preferred over bolted heatsink integration |
Compared with D170U25K and CM170DY-25, D170U25CXPSA1 offers the best balance of softness (SR = 0.004 µs/A), thermal resistance (0.25 °C/W), and standardized M20 stud mounting - making it optimal for retrofitting into existing eupec/Infineon-based industrial drive platforms.
Availability
D170U25CXPSA1 is available at Aetrix Electronics and suitable for industrial motor drives, uninterruptible power supplies, renewable energy inverters, and medium-voltage DC distribution systems requiring stable component supply across multi-year production cycles.
Supply support for D170U25CXPSA1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
eupec was a German semiconductor manufacturer specializing in high-power discrete devices, later fully integrated into Infineon Technologies in 2001. It pioneered press-pack thyristor and diode technology for industrial power conversion.
D170U25CXPSA1 belongs to the U-series fast recovery diode product line, engineered specifically for ruggedized line-commutated and forced-commutated rectification in heavy-duty industrial drives and energy infrastructure.
FAQ
What is the maximum allowable junction temperature for D170U25CXPSA1?
The maximum rated junction temperature (Tvj max) is 140 °C, validated per DIN IEC 747-2 test conditions. Operation beyond this limit risks irreversible degradation of the silicon die's carrier lifetime and forward voltage stability. Thermal design must ensure junction temperature remains ≤140 °C under worst-case ambient and load conditions.
Does D170U25CXPSA1 require a thermal interface material between case and heatsink?
Yes - a thermally conductive, electrically insulating interface material (e.g., ceramic washer or silicone pad) is mandatory between the anode base and heatsink. The specified RthCK = 0.04 °C/W assumes single-sided mounting with proper surface finish (Ra ≤ 1.6 µm) and 20 Nm mounting torque applied to the M20 cathode stud.
Can D170U25CXPSA1 be used in parallel configurations?
Parallel operation is feasible only with matched devices and active current-sharing techniques (e.g., ballasting resistors or interleaved gate drive). The device's forward voltage spread (vF max = 2.15 V at 650 A, 140 °C) and thermal coupling characteristics require careful thermal layout to avoid current hogging - not recommended without empirical validation per IEC 60747-2 Annex D.
Is D170U25CXPSA1 compliant with RoHS and REACH regulations?
As a pre-2006 eupec product, D170U25CXPSA1 was manufactured prior to mandatory RoHS implementation and contains lead-based solder in internal interconnects. Infineon confirms legacy compliance documentation is available upon request, but modern replacements (e.g., IDH170E25C) meet current RoHS 3 and REACH SVHC requirements.
D170U25CXPSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- DO-205AA, DO-8, Stud
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 2500 V
- Current - Average Rectified (Io):
- 210A
- Voltage - Forward (Vf) (Max) @ If:
- 2.15 V @ 650 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 5 mA @ 2500 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Stud Mount
- Supplier Device Package:
- -
- Operating Temperature - Junction:
- -40°C ~ 140°C
D170U25CXPSA1 FAQ
1.How can I place an order for D170U25CXPSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for D170U25CXPSA1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for D170U25CXPSA1 reliable?
The price and inventory of D170U25CXPSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for D170U25CXPSA1 is usually 5 days.
3.What payment methods are accepted for D170U25CXPSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for D170U25CXPSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for D170U25CXPSA1?
D170U25CXPSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your D170U25CXPSA1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for D170U25CXPSA1?
For technical support, including D170U25CXPSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your D170U25CXPSA1 requirements.
6.How does Aetrix verify that D170U25CXPSA1 is sourced from the original manufacturer or authorized distributors?
All D170U25CXPSA1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that D170U25CXPSA1 meets industry standards.
7.What is the process for return or replacement of D170U25CXPSA1?
All D170U25CXPSA1 units undergo pre-shipment inspection (PSI). If there is an issue with D170U25CXPSA1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The D170U25CXPSA1 part is unused and in its original packaging.
Return procedure for D170U25CXPSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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